<template>
    <div class="song-list">
        <!--歌单详情-->
        <van-nav-bar
        litle="歌单详情"
        left-text="返回"
        left-arrow
        @click-left="onClickLeft"
        />
        <!-- 歌单顶部 -->
        <div class="header">
            <img :src="song.logo" alt="">
            <h4>{{ song.dissname }}</h4>
            <div class="nick">
                <img src="" alt="">
                <span>{{ song.nickname }}</span>
            </div>
            <span>{{ song.visitnum | numFilter(1) }}万</span>
        </div>
        <!-- 歌单列表 -->
        <div class="list">
            <van-list
            v-model="loading"
            :finished="finished"
            finished-text="没有更多了"
            @load="onLoad"
            >
                <div v-for="(item,index) in songlist" :key="index">
                <h4>{{ item.songname }}</h4>
                <div class="singer">
                    <span v-for="(singer,index) in item.singer" :key="singer.id">
                        {{ singer.name }}
                        <span v-show="index != item.singer.length - 1">/</span>
                    </span>
                    <span v-show="item.albumname">
                        <span>·</span>
                        <span>{{ item.albumname }}</span>
                    </span>
                </div>
            </div>
            </van-list>
        </div>
    </div>
</template>
<script>
export default{
    data(){
        return{
            song:{
                dissname:"",//标题
                logo:"",//歌单log
                headurl:"",//歌单制作者头像
                nickname:"",//歌单制作者昵称
                visitnum: 0,//歌单播放量
            },
            songlist:[],//歌单列表
            songnum:0,//歌曲列表数目
            list: [],
            loading: false,
            finished: false,
        };
    },
    created(){
        this.getListDate()
    },
    methods:{
        getListDate(){
            this.$request('get','/songlist?id='+this.$route.params.id)
            .then((res)=>{
                console.log(res)
                this.song.dissname = res.data.dissname;
                this.song.logo = res.data.logo;
                this.song.headurl = res.data.headurl;
                this.song.nickname = res.data.nickname;
                this.song.visitnum = res.data.visitnum;
                this.songlist = res.data.songlist;//获取歌曲列表信息
                this.songnum = res.data.songnum;//获取歌曲数目
            });
        },
        onClickLeft(){
            window.history.length > 1 ? this.$route.go(-1) : this.$router.push('/')
        },
        onLoad(){
            setTimeout(() => {
                this.list = this.list.concat(this.songlist.splice(0,10))

                this.loading = false;

                if(this.list.length >= this.songnum){
                    this.finished = true;
                }
            },1000)
        }
    }
}
</script>
<style scoped>
.header>img{
    border-radius: 1rem;
    width: 50%;
}
.nick{
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 1rem;
}
.nick>img{
    height: 2rem;
    border-radius: 50%;
    margin-right: 0.5rem;
}
.nick>span{
    height: 2rem;
    font-size: 0.8rem;
    line-height: 2rem;
}
.list{
    margin: 0 1rem;
}
.list h3{
    text-align: left;
    font-size: 1rem;
}
.singer{
    text-align:center;
}
.singer span{
    font-size: 0.8rem;
    color: rgb(160, 160, 190);
}
.singer>span:nth-last-child(1)>span:nth-child(1){
    color: red;
    font-weight: 900;
    padding: 0.5rem;
}
</style>